Biomedical Signal Processing Projects Using Matlab

Biomedical Signal processing projects using matlab allows the sophisticated platform to monitor, compute, test, and measure electrical and non-electrical signals. The ultimate aim of this technique is to process the physiological signals for analyzing the patient’s health condition and predicting the clinical disorders through diverse computerized techniques. Biomedical signals collect the signals/data from a real-time biological framework through sensors or medical devices. Then with the help of technological solutions, you can perform scientific study over the gathered signals for better interpretation.

At that time, we have to give special care to image quality and sound-dropping problems since these two major issues need to be handled by effective actions to eliminate the faults and noise in the data analysis process. Below, we have specified the necessity of signal processing.

Why is Signal Processing required? 

  • Modeling of signal for representing the signal in an effective way
  • Controlling the fluctuation in bio-medical signals for processing
  • Acquiring the signal from real-world for sampling and analyzing the signals
  • Approximating the constant and continuous signals

Important Principles of Biomedical Signal Processing

  • Majorly, one-dimensional/two-dimensional images represent the physiological signals.
  • Precisely read the signals based on an arithmetical viewpoint.
  • Leveraging the big stream data in the complex system
  • Biomedical signals are in the type of images (microscopy), ultrasounds, X-rays (CT and Radiographs), electromagnetic signals (MRI, ECG, and EEG), and many more.
  • Design and analyze the linear mixed models along with signal performance and biological contact
  • Extract the essential features for enhanced image/signal visualization
  • Measure the biomedical signals on using the advance biomedical utensils
  • Process the signal for complicated information or system

Biomedical Signal Processing Projects Using Matlab and simulink

The Current Biomedical Signal Processing Projects Using Matlab is major underlines on the advanced techniques for processing signal. Our resource team is upgraded knowledge on the latest developments in bio-signal processing technologies. Also, in the case of handling challenging tasks, our developers are proficient enough to design new algorithms or pseudo-codes to solve those issues in a smart way. These techniques are special to untie the problems involved in biomedical, neural, and scientific signals. And, some of the master techniques of bio-signal processing are given in the followings,

What are the Biomedical Signal Processing Techniques?

  • Subjective Testing and Classification: Deep learning of raw biological sequence-based Gaussian process classifier approach
  • Clustering Signals: Processing of group signal/data based on group theory in sifter equipment

Research Topics in Biomedical Signal Processing

  • Deep learning approach based Time Series Classification
  • Comparison of Linear and Non-Linear Multi-Dimensional Signal Analysis
  • Modeling of Data-driven Multi-Channel Correlation Filter
  • Digital Signal Demodulation and Modulation techniques for Data Communication
  • Adaptive Filtering, Processing, and Analyzing of EEG Signal
  • New Developments in Subspace based Signal Processing, Analyzing and Approximating

To demonstrate one point, we have taken the EEG as a sample. In the coming section, we will give you information about the significant characteristics of EEG signals.

What are the parameters in EEG Signal Analysis? 

In order to evaluate the EEG signal in terms of behavior and performance, several metrics such as mobility, complexity, and activity are used. All these elements will measure the working process of feature extraction and feature classification. In particular, the given parameters gain special consideration in EEG signals.

  • Time Values
  • Normalized Slope Descriptors
  • Frequency Values

In addition, our experts have given you the other important features that used in the process of EEG signal analysis and features,

  • Time-Rate
    • Features
      • Wavelet Energy (WE)
    • Extraction
      • SDWT-IMW
    • Frequency
      • Features
        • Relative Power
        • Absolute Power
        • Power Spectral Density (PSD)
      • Extraction
        • AR-OMO
      • Time
        • Features
          • Root Mean Square (RMS)
          • Hjorth Parameters
          • Approximate Entropy (ApEn)
          • Hurst’s Exponent Analysis
        • Extraction
          • Positioning Reference Signal (P-RS) Analysis

Now, we can see the functionalities offered by MATLAB for processing signals. For illustrative purposes, we have specified the preprocessing and feature extraction processes of biomedical signal processing.

  • Signal Acquisition
      • MATLAB enables you to embed other hardware appliances for collecting the signals.
      • For instance, it includes supportive packages like Arduino and Raspberry Pi to embed with EKG-Shield, Arduino, and Raspberry Pi boards.
      • Analyze the sensed data/signal and store the processed information on files such MAT, Excel, EDF, and more
  • Signal Visualization and Annotation
      • MATLAB offers several bundled software and predefined functions
      • By using these built-in functions, it is easy to advance the visualization and analysis of bio-signal in terms of frequency, time, and time-frequency features.
      • Also, these apps assist you in taking effective preprocessing methods for improving the interpretation of data in the signals.

For technically analyzing the bio-signal trends and patterns in processing, it gets the signals from sensors/medical equipment and implements the appropriate preprocessing techniques to extract reliable information. These bio-signals are collected from different sources such as muscle movement, cardiac rhythm, neural, and other biological activities. From these sources, it captures the non-invasive signals like EEG, EMG, and ECG for clinical treatments. Here, we have given you the working flow of the biomedical signal processing system for your information.

  • Capture the signal
  • Visualize the annotated signal
  • Perform preprocessing to remove the unwanted noise
  • Extract the essential features by eliminating irrelevant data
  • Classify the extracted features (optional)
  • Prepare the report for diagnosis

So far, we have discussed the signal processing importance, need techniques, research topics, and workflow of biomedical signal processing using matlab. And, we have seen the special functionalities of Matlab used for signal processing. Now, we can see the list of toolboxes supported in Matlab for signal processing.

Biomedical Signal Processing Matlab Toolboxes 

Signal Processing Toolbox 

  • Signal Processing Toolbox
    • Support all uniform and non-uniform signal processing practices
    • Provide individual tools for following processes,
      • Design / analyze the filter
      • Smooth the signal
      • Resampling the signal
      • Detrend the signal
      • Estimate the power spectrum
    • Give flexible operation to extract the features
      • Find the peaks
      • Compute the envelopes
      • Quantify the similarities of signal
      • Detect the changepoints
      • Identify the signal patterns
      • Measure the noise (SNR and distortion)
    • Support the vibration signals order analysis

Wavelet Toolbox

  • Built-in apps / functions for processing both images and signals (synthesis and analysis)
  • Provisioned with modern algorithms for following process,
    • Synchrosqueezing
    • Wavelet Coherence
    • Time-Frequency Analysis (Data-Adaptive)
    • Continuous Wavelet Analysis
  • Support discrete wavelet signal analysis (decimated and non-decimated). Further, it also incorporates dual-tree transform and wavelet packet transform
  • In continuous wavelet signal analysis:
    • Inspect the dynamic spectral features
    • Recognize the similar time-varying features between the signals
    • Carry out filtering process based on time-localization
  • In discrete wavelet signal analysis:
    • Analyze multi-resolutions images/signals to identify the cutoffs, invisible events, changepoints, and in raw data.
    • Enable the fractal data analysis and signal statistics comparison

In all the research domains/areas, performance evaluation is the most important step in project development. Since this the point, you prove that your proposed solutions have better performance than the previously used old techniques. So, here we have given you the significant performance analysis metrics for the biomedical signal processing system.

Performance Analysis in Biomedical Signal Processing 

Now, we can see the metrics that are used in the evaluation of machine learning-based EEG signal processing systems. And, the important recital metrics in estimating the performance efficiency of the system are Accuracy, Sensitivity, specificity, AUC, and MSE.


  • Assess the used classifier functions, in the time of execution
  • 100% specificity describes that the input signals are in standard level


  • Measure how the classification approach identify the actual signal state
  • 100% sensitivity denotes that the classifier meet the extreme sharp EEG signal.


  • Compute the truthfulness of the diagnosis experiment results
  • Measure the classification accuracy in percentage
  • 100% accuracy specifies that data is precisely classified
  • Give true negative or true positive values

Mean Square Error (MSE)

  • Measure the normal squared error

The elevated parameters show that the classifier fails to compute the accurate data level stage. If that metric may low is that can be a classifier.

Area under Curve (AUC)

  • Measure standard level of data site
  • Give the graphical curve of a classifier
  • Marked between the followings,
    • Sensitivity and TPR
    • Specificity and FPR

In the above, we have mentioned few commonly used metrics in Biomedical Signal Processing Projects Using Matlab. Further, if you need to know more exciting information about biomedical signal processing, then keep in touch with us. Our professionals help you to build extraordinary research work in your interested area.


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